Dan Bates, ‘YouTube Is Losing Money Even Though It Has More Than 1 Billion Viewers’, Daily Mail, 26 February 2015, , ссылка актуальна на 19 October 2017; Olivia Solon, ‘Google’s Bad Week: YouTube Loses Millions As Advertising Row Reaches US’, Guardian, 25 March 2017, , ссылка актуальна на 19 October 2017; Seth Fiegerman, ‘Twitter Is Now Losing Users in the US’, CNN, 27 July 2017, , ссылка актуальна на 19 October 2017.
